Sql server 使用内部联接进行更新的TSQL语法

我试图将此mysql查询转换为在SQL上运行，但在join上的语法方面存在一些问题。基本上，我想做的是根据DWH_日期将重复行上的DWH_HISTO设置为1。因此，应标记旧的副本

这就是我尝试过的

UPDATE MAG_L_D3.dbo.INSCRIPT
INNER JOIN
(SELECT MAX(DWH_DATE) as lastId, CODINS
  FROM INSCRIPT
  WHERE DWH_HISTO=0
  GROUP BY CODINS
  HAVING COUNT(*) > 1) duplic on duplic.CODINS = MAG_L_D3.dbo.INSCRIPT.CODINS
  SET DWH_HISTO = 1
  WHERE MAG_L_D3.dbo.INSCRIPT.DWH_DATE < duplic.lastId

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使用内部联接进行更新：

UPDATE I 
SET DWH_HISTO = 1 FROM MAG_L_D3.dbo.INSCRIPT I
INNER JOIN
(SELECT MAX(DWH_DATE) as lastId, CODINS
  FROM INSCRIPT
  WHERE DWH_HISTO=0
  GROUP BY CODINS
  HAVING COUNT(*) > 1) duplic on duplic.CODINS = I.CODINS
  WHERE I.DWH_DATE < duplic.lastId

---

我相信这就是您要寻找的语法：

;WITH CTE as
(
  SELECT *, row_number() over (partition by CODINS order by DWH_DATE desc)rn
)
UPDATE CTE
SET DWH_HISTO = 1 
WHERE 
  rn > 1
  and DWH_HISTO=0

---

哇，有趣的语法：O不确定到底发生了什么，但会研究它：D谢谢you@C.Astraea它比join方法快